Hi all throttle body users, just wondering what value cold idle advance people were running, as I set up the car for winter cold mornings.
If anyone has any values for about 900 Rpm idle and water temperatures less than 10 deg C, basically i can get mine to idle ok when cold by adjusting the throttle stop position, but when warmed up to about 70 deg C it will idle too fast.
I have tried giving it more advance when cold but it doesn't run much smoother or with a faster idle. If i were to adjust idle at 90 deg, then with the engine cold it struggles to hang on to idle at about 500 Rpm, though within about 5 mins of warming up its fine.
Any values, so i can just try please, thanks.

From my own experience, you only really want to try changing the coolant temp enrichment table by the sounds of what your looking for. I would assume you want to add a small amount of fuel. But only really beat done with the wide band oxygen sensor and gauge hooked up.

It's trial and error on cold start. You only really get one shot at cold start mapping every few hours as you then have to let it get cold gain. Should be a fairly smooth curve if the rest of the map is good.

When your talking about advance are you meaning the timing ignition advance though? I haven't changed any ignition timing on my cold idle settings. I worked on the coolant fuel trim fuelling table.

I don't have a copy of my map on this computer otherwise id screen shot mine. I found it was merely a case of some live changing of the values and got it running fairly easily with either a little more or little less fuel, then as it warmed following the point on the graph and adjusting the fuel as it went up. Ended with a fairly smooth curve down to zero added fuel.

I would like to use an idle control valve but it means drilling the inlet manifold because there is no space on the Jenvey bodies to fit anything. It already has air correction needle valves and lock nuts on each intake of the bodies.
I do re adjust the throttle stops in the map each time i make an adjustment, even though they are tiny.
Anyway more tinkering at the weekend needed.

Thanks for the replies chaps.

The problem there is if the map is already setup you shouldn't be changing the stops in the map. Otherwise you're altering all the low throttle mapping.

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Adjusting the throttle stop screw for idle is minute though, values on DTA win for the closed position vary from 24-27 (throttle stop screen) and these are less than 1% on the throttle position when looking at the real time screens.
I have written down the resistance of the TPS too at closed, so that the throttle butterflies can be closed back to where they were originally.

Thanks for that Rich, at least I know I can give it a maximum of 45 deg advance if needed.